Many people were told in biology class that some basic human traits reflect simple genetic principles. One example is how earlobes are attached. When I was in high school, our biology teacher told us to examine each other’s ears and see how many had attached versus unattached earlobes. Attached earlobes do not have a lobe that dangles. In general, there were many more students with unattached than attached earlobes. We were told the attached...

In winter, we usually think of hunkering down, staying in, and slowing the pace. But even when Dallas got colder than Antarctica, crews were hard at work building the ICR Discovery Center for Science...